Machine for breaking ore and other minerals



April 26, 1927.

R. HUSH MACHINE FOR BREAKING ORE AND OTHER MINERALS Fi led Feb. 12. 19252 Sheets-Sheet 1 :5 1 55 6 I as as 10 a I :f w"' 2 1927. R. HUSH MACHINEFOR BREAKING ORE AND OTHER MINERALS 2 Sheets-Sheet 2 Filed Feb. 12. 1925.illlllL Patented Apr. 26,

a stares tezaeig ears-hr nearer amide MACHINE non BREAKING one AnnornnnMINERALS.

Application filed February 12, 1925, Serial No, 8,815, and in the "Unionof SouthAfrica February 18, 1924.

This invention consists of improvements in machines of the'j awcrushertype for breaking or crushing ore and other minerals, and isparticularly applicable for reducing ore to a size suitable forintroduction into a fine grinding machine. One feature of the inventioncan, however,-be adopted in the construction of other types ofjawcrushers', such as, for example, the Blake crusher. I

According to this invention the swinging o movable jawor stock isdirectly actuated or operated to cooperate with thest'ationai y jaw, asfor example, through theinedium, of connecting rods and eccentrics ortheir equivalent off the main driving shaft"; the jaw is suspended-fromthe upper end and the powerqi's applied to it at the lower end,

and the crushing of the m'aterial takes place.

between the ,poi'nt of suspension and the point of application of thepower, thereby Y obtaining more efiicient application of; the

power. The-stationary j awisprovided' with" adjusting means whichautomatically accommod'atesitself to-the positions taken up Y by the jawafter'any adjustment, whereby'the stationary jaw can be' finelyadjusted, easily and quickly, to obtain the desired si'zefof product,the main frame being appropriately shaped or inclined to provide therequisite type, and

accommodation for the adjusting means."

The renewable wearing plates of the (3111811? ing jawsare formed withshallow and wide, corrugations, asopposed to the 1 ordinary V'- shapedribs or projections, which corrugae tions may be continuous for the fulldepthv of the wearing plate. Alternatively, the corrugations may beformed on the plate extending for a -portionsay half-of the depththereof, and other corrugatons, stag-' gered in relation to thefirst-mentioned corrugations, may be formed on and extend for therest-say halfof the depth of the plate; The staggering of thecorrugations renders the plates interchangeable and also independentlyreversible or each capableof being inverted or turned end for end. Thisconstruction has tliefurthei' advantage that the plate canbe used foreither the swinging orstationary jawand obviates the necessity I forproviding different constructions of platesfor each jaw as is-thecasewith plates having continuous corrugations,

In applying that feature of the invention drawings, wherein whichi-elateszto the crushing jaws or wearing-plates therefor to other typesofjaw ci'ushers, such as, for example,the Blake I crusher, the shallowandfwide corrugations on the working faces of'the aws or renewsablewearing plates are. preferably continu bus, or run from thetoptofthe bottom edges ofsaid jaws or plates, or for'the full" dept-hthereof. As a result or this construction the aws or platesarereversible 'orca'pa'ble of being inverted or turned end for end. Theinvention will be more fully describedwith the aid of the accompanyingFig. 1 is a sectional elevation of amachine embodying the variousfeatures ofitl e invention, the section being takenjon line wm of, Fig.2. V

F 1g. 2 183, plan of the machine;

Fig. 3 is an elevation of one'of-tlie renew, able wearing plates of thecrusher jaws,,de-' I Fig; Gris a 'plan view of the plates of the cooperatiiig jaws of a crusher of the"-Blake Fig; 7 isahalf-sectiona-l'elevation of the big end of one of the connecting rods.

Referring to the embodiment of the sev- 1 eral feat-ures of theinvention depicted in Figs. 1' to 4 and 7, the'numeral 1 denotes.

the main frame of the machine, which, as.

shown in Figs, 1, and 2, is constructed to provide at one'end a vert calhousing or crushing chamber 1 and at the other end to form a support orframework to provide 'orcarry the bearings 2,3, for the driving shaft 4.Between the sides of'the vertical" housing 1* and" near both endsthereofare arranged shaftsorpivotse, 6, respectively.' From the shaft 5 issuspended the swinging aw 7, and in like manner from the shaft 6 issuspended the stationary adjustable jZLW8i The re'a'i "or' back end ofth hin'ob chamber 1 isinclined or sloped downwardly and rearwardly tothe base, as indicated" at 9, and the sideplates 1'0, 11, of the rearportion 'of the main framel are sloped downwardly from the top of thecrushing chamber 1 to the base at 12. These rearwardly inclined sideplates 10, 11, provide it the bearings 2, 3, respectively, for thedriving shaft 4, on which, between the side plates 10, 11, is securedthe balance or flywheel 13 of the machine. I

v The driving shaft 4, at the one side, ex: tends through the bearin 3and has arranged thereon the fast and loose pulleys 14, 15,respectively; 16 being a pedestal or support for a bearing 17 in whichthe outer end portion of the shaft '4, beyond the loose pulley 15 isrotatably carried. 18 is a cap fixed 'to the outside of the bearing 17for closing the bearing to. form a lubricant holding from saideccentrics 22, 23, to the movable jaw 7 by means of a pair of connectingrods 24, 25, placed at the-outer sides of the main frame 1. Theconnecting rods 24, 25, are

adjustable as to length, the parts of the big ends being provided withliners or distance pieces 26 placed between said parts-see Fig.7

a plate fixed on the end of the shaft 4 at the outside of the big end ofthe connecting rod 24, for retaining the latter in position, and 28 is adistance piece or collar which also serves as a stop for the otherconnectingrod between the latter and the fast pulley 14. 29 are holesformed in the shaft 4 between the bearings 2, 3, and the ends of theconnecting rods 24, 25, respectively, which holes provide ducts orchan-v ne-ls for the passage of lubricant.

The other ends of-the connecting rods 24, 25, are connected to the lowerend of the swinging jaw 7 by means of a shaft 30, said shaft 30 looselyfitting the hole 31 through 1 1 the lower end of the jaw 7 and passingthroughholes 31 in the sides of the main frame, which holes are largeenough to allow of the movement of the shaft 30. therein. The

connectingrods 24, 25, are attached to the .ends of the shaft 30 by setscrews32'.

The jaws 7, 8, are recessed on their opposing working faces toreceivethe wearing plates 33, 34, and wedge pieces 35 and screws 36 areprovided for securing the plates 33, 34, in said recesses The bottom ofthe recess and the lower side of the wedge 35-ineach jaw or stock aremade with correspondmg tapers to allow of thewearing plates beingrenewed, or, if desired, being reversed and /or interchanged.

The adjusting means for the stationary 2. The plates jaw 8 may, asshown, comprise an adjusting screw 36 and screw-threaded handle orwheelnut 37, the latter being fashioned with a projection 38 which ispart of a sphere and projects into a correspondingly shaped recess 39formed in a bracket or extension 40 providedon the frame 1 forsupporting the adjusting means, The adjusting screw 36 projects down theback of the stationary jaw 8 between it andjthe back wall of the crushing chamber 1?, and at its lower end is pivotally attached, by means ofpivot pin 40*, to an adjusting block 41, which block, at the front,engages with the back of the stationary jaw 8, and at the other side,whichis concave or of arcua-te shape in cross-section,

with a part 42 which is correspondingly con-v vex. 4 This latter part 42is loosely attached to the adjusting block 41 by a screw 43 which allowsof the requisite movement of the block 41 around the-surface'of the part42.

The part 42 on the opposite side or back i is made plane and slidinglycontacts with the rearwardly inclinedwall 9 ofthe back ofthe crushingchamber 1 As shown in Figs. 1 to .4,-the wearing plates 33, 34, areformed with shallow and.

wide corrugations 44 extending forone-half the depth of the plate, andwith other corrugations 45, staggered in relation to the'corrugations44,, for the other half ofthe depth ofthe wearing plate. The inner endsof the raised portions of the corrugations 44 pro ject-between the endsofthe relatively staggered raised portions of the corrugations 45,

so that the raised or convex portions of the corrugations 44 merge intothe concave portions between the relatively staggered, raised orconvexportions of the corrugations 45, and vice versa. The corrugationsof the wearing plates of the two'jaws are such that those of the one jaware disposed opposite to and co-act or cooperate with those of the otherjaw, i. e., the convex portions of the corrugations of the one jaw are.placed opposite to andco ac t'or co-operate with the concave portions ofthe other jaw in all'positions of the wearing plates-see Figs. 1 and 33,34, being of identical construction,it will be understood that they areinterchangeable and independently reversible. or capable of beingturnedend for end.

The corrugations 44, 45, run from top to bottom of the plates, and, assi'iown, preferably extend the full width of the jaws. 'The numher anddimensions of the corrugations are.

designed to reduce the material to the desired size of product.

' By the adoption of the wearing plates constructed as above described,I obtain,

greater durability and greater uniformity reduced beneath the jaws7, 8,theremay be arranged a tray or receiver (not shown) for the connectingvrods 24 and/or on'the ends of the shaft 30, and so prevent knock. InFig.

1 1- ofthe drawings, means provided for this :by bolts 57.

purpose consists; of a fiat spring 47 adjust-- ably fixed, near theupper end to the frame 1 by means of a bolt 48, and at the lower endattached by means of a hook-shaped bolt 49 to the lower end of the jaw7. 50 is the adjusting nut for the bolt 49, and 51 a pin fixed across arecess 52 in' the back of the jaw 7, with which pin- 51 the hookedextremity of the bolt 49 engages. An opening 53 is provided in the backof the frame 1 forthe wing-nut 50 to move in and also to provide accessto the back of the swinging jaw 7. 54 is a pin fitted in a hole in theupper portion ofthe end of the frame 1 for engaging in a correspondinghole in the upper end of the spring 47, for retaining it in a centralposition. v

55, 56, are renewable lining plates fitted in recesses in the frame 1,at the sides of the crushing chamber 1, and fixed therein In thedrawings the machine is provided with-fast and loose pulleys'14, 15,-respectively, for driving it by power,'but if the machine be designedfor crushing samples,

it may be operated by hand through the medium of a crank handle or leverfixed to the driving shaft 4. j

Renewable, independently reversible and interchangeable wearing platesconstructed with staggered wide and shallow corrugations, as abovedescribed, can with advantage be adopted in jaw crushers 'of othertypes, as for example, the Blake type, whether the jaws be operated bythe means above described, or otherwise. a v

In the modified form of the renewable wearing plates shown in Figs. 5and 6, suit- .able for a crusher of the Blake or similar types, the wideandshallow corrugations are I continuous or run from the topto thebottom edges of the plates (or jaws).

with the corrugated working-faces, may be tinuous corrugations would berenewable and reversible, but not being OflClGlllJlGiLl construction,would not be interchangeable. I

In some types of jaw crusliers the fixed jaw would probably require tobe constructed with one extra corrugation, that is tosay plates with thewide and shallow. corruga- The plates or the jaws themselves,constructed is: a

it would. be a-corrugation wider than the swing jaw.

An advantage of constructing the wearing tions is that the passage ofthe materiahand particularly flat pieces, through the jaws withoutbeing" reduced or crushed pre: vented, and that an opening is provrded,ex

tending the full width of the .jaws,"of unij form width between thecorrugations of the two jfLWS. The. long sweep or radiusiofthecorrugations ensuresthat the hollow on 0011- cave parts of thecorrugations of, the plates (or jaws) shall be worn down uniformly with,the. intervening convexor projecting parts, t'hereby retaining the,corrugated: for? mation of the plates (or jaws) during the whole ofthetime they are in use, or until they are worn out. The alternatingconvex and concave formation of both the swing and fixed jaws ensuresthat the convex portions of the one shall enter the concave portions ofthe other,

as shown in Fig. 6, which, as previously ex-.-

plained, results in uniform wear overthe width of the surface of thejaws and so materially increases the life of the plates or jaws.

. For the purpose of. facilitating the lining of the big ends (or bothends) of the connecting rods 24, 25, anarcuate projection 59,. as shownin the big end of one of the connecting rods in Fig. 7, is provided,which projection 59 forms part of the bore and serves for centering amandrel around which the molten metal is run into" line the bearing. v

What I claim as my invention and desire to protect-by Letters Patentis 1. Amachine for breaking ore-and other minerals, including a crushingchamber, an" adjustable stationary jaw and a-swinging j aw, means fordirectly actuating the swing.- ing jaw" to co-opera'tewith thestationary jaw, and means for adjusting the stationary jaw comprisingabl'ock' arranged between the back-of the stationary crushing jaw andthe wall of the crushing chamber, one face of said block beingvconstructed with "a con cave surface, a part arranged between theconcave surface of the block and the wall of the chamber and having aconvex surface tacts, and mea ns for raising and lowering the ad ustingblock, as set forth, 7

2. A n'iach'ine for breaking ore, and other minerals, including acrushing chamber, a v stationary aw and a swinging aw, means acorresponding to and co-acting with the concave surface of the blockwithwhich it conj 1 block being constructed with a 'concaye surface, apart arranged between the concave suriace otthe block and the Wall ofthe chamber and having a convex surface corresponding toand co-actingwith the concave surface of theblock with which it contacts,

and means for raising and lowering the adjusting bloc-k, said meanscomprising a screw carried'by an extension of the mainframe of thecrushing chamber and a hand-wheel engaging said screw, the tvheel andextension being constructed to provide a ball and ing jawspsaidwearingplates being constructed with wide and shallow corruga tions 'Offuniform depth throughout the length ot said corrugations, said corr'ugations extendingfor a portion only of the depth of the wearing plate, andwith an equal number of other exactly similar and oppositely placedcorrugations staggered in relation to the first-mentioned corrugationsfor the remainder of the depth of the plate,

whereby the plates are rendered both reversible and interchangeable, asset forth.

In testimony whereof I have signed my name to this specification.

RALPH HUSH.

